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Details and Image



Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU015Linear
4053-3
4583
n/a
Polyphase Mannheim AdjustableKeuffel & EsserUSA
600738
Engine divided celluloid laminated mahogany
"10"
1962
C3

Notes: "Narrow unbreakable indicator (plastic replaces glass window). Frame changed to molded plastic; rails remain mahogany. Conversion table changed to new K&E table. Similar to D4053-3, but with trig scales divided in minutes. Notations removed on front."

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